Porcupine

Porcupines are rodents with a coat of sharp spines, or quills, that defend or camouflages them from predators. They are indigenous to the Americas, southern Asia, and Africa. Porcupines are the third largest of the rodents, behind the capybara and the beaver. Porcupines are rounded, large and slow. They come in various shades of brown, grey, and the unusual white. Porcupines' spiny protection resembles that of the unrelated erinaceomorph hedgehogs and monotreme echidnas.

The common porcupine is an herbivore. It eats leaves, herbs, twigs and green plants like skunk cabbage and clover and in the winter it may eat bark. It often climbs trees to find food. It is mostly nocturnal, but will sometimes forage for food in the day. (wikipedia.org)

In other words - titu.